A seismic monitoring station detects two distinct types of waves propagating through a uniform granite stratum from an underground tremor: a primary $P$ -wave (longitudinal) and a secondary $S$ -wave (transverse). Which of the following statements correctly describes a difference in their physical behavior?

Both the $P$ -wave and the $S$ -wave can be polarised because they are both mechanical progressive waves.

The $S$ -wave can be polarised because its particle oscillations are perpendicular to the direction of propagation, whereas the $P$ -wave cannot be polarised.

The $P$ -wave can be polarised because its particle oscillations are parallel to the direction of wave travel, whereas the $S$ -wave cannot be polarised.

Neither wave can be polarised because polarisation is a phenomenon that only applies to electromagnetic waves.

Both the $P$ -wave and the $S$ -wave can be polarised because they are both mechanical progressive waves.

The $S$ -wave can be polarised because its particle oscillations are perpendicular to the direction of propagation, whereas the $P$ -wave cannot be polarised.

The $P$ -wave can be polarised because its particle oscillations are parallel to the direction of wave travel, whereas the $S$ -wave cannot be polarised.

Neither wave can be polarised because polarisation is a phenomenon that only applies to electromagnetic waves.

Progressive and stationary waves

Question 4

Markscheme

Progressive and stationary waves

Question 4

Markscheme

Progressive and stationary waves

Question 4

Progressive and stationary waves Questions

Progressive and stationary waves

Question 4

Progressive and stationary waves Questions